18305930

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:179

約数の個数: 64

約数和(自身を含む): 37324800

約数和(自身を除く): 19018870

約数列:

[1, 2, 5, 10, 19, 23, 38, 46, 59, 71, 95, 115, 118, 142, 190, 230, 295, 355, 437, 590, 710, 874, 1121, 1349, 1357, 1633, 2185, 2242, 2698, 2714, 3266, 4189, 4370, 5605, 6745, 6785, 8165, 8378, 11210, 13490, 13570, 16330, 20945, 25783, 31027, 41890, 51566, 62054, 79591, 96347, 128915, 155135, 159182, 192694, 257830, 310270, 397955, 481735, 795910, 963470, 1830593, 3661186, 9152965, 18305930]

約数ペア:

[(1, 18305930), (2, 9152965), (5, 3661186), (10, 1830593), (19, 963470), (23, 795910), (38, 481735), (46, 397955), (59, 310270), (71, 257830), (95, 192694), (115, 159182), (118, 155135), (142, 128915), (190, 96347), (230, 79591), (295, 62054), (355, 51566), (437, 41890), (590, 31027), (710, 25783), (874, 20945), (1121, 16330), (1349, 13570), (1357, 13490), (1633, 11210), (2185, 8378), (2242, 8165), (2698, 6785), (2714, 6745), (3266, 5605), (4189, 4370)]